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fomenos
3 years ago
12

Which are the roots of the quadratic function f(b) = b2 – 75? Check all that apply.Which are the roots of the quadratic function

f(b) = b2 – 75?
Mathematics
2 answers:
Eduardwww [97]3 years ago
6 0

Answer:

the ANSWER IS A) AND B) ON EDGE I JUST TOOK THE TEST

Step-by-step explanation:

HOPE THIS HELPED

Salsk061 [2.6K]3 years ago
5 0
For this case, what we must do is equal the function to zero:
 b ^ 2 - 75 = 0
 From here, we clear the value of b. We have then:
 b = + / - root (75)
 We rewrite:
 b = + / - root (3 * 25)
 b = + / - 5 * root (3)
 So, the roots are:
 b1 = 5 * root (3)
 b2 = -5 * root (3)
 Answer:
 The roots of the quadratic function are: 
 b1 = 5 * root (3)
 b2 = -5 * root (3)
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grandymaker [24]
The solution to the problem is as follows:

The quotient rule is ( f'(x)g(x)-f(x)g'(x) )/ (g(x))^2 {complex written on 1 line I know} 

let f(x)=9x +13 and g(x)=2x+4 
<span>
f'(x)=9 and g'(x)=2 </span>
<span>
therefore just substitute the equations in. </span>
<span>
y'= 6x - ((9(2x+4)-2(9x+13))/((2x+4)^2)) 
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I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
8 0
3 years ago
Please help, I'm stuck on this answer.
babymother [125]
I agree with what that person told you. The expression -2(x+10) is equivalent to -2x-20

Multiply the outer -2 with the inner x to get -2 times x = -2x

Multiply the outer -2 with the inner term 10 to get -2 times 10 = -20

So overall, -2(x+10) = -2x-20

--------------------------------------------

So that's how we're able to go from this -2(x+10) \ge 75 to this -2x-20 \ge 75

The only thing that changes is the left side. The inequality sign will not flip. It only flips if we multiply both sides by a negative number. 

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miv72 [106K]

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Step-by-step explanation:

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